After reading many posts here and also hearing a friend's dual woofer OB GR Research subwoofers, my intention is to build a pair of quad towers using 4 SW-12-16FR drivers per channel paralleled for 4 Ohms total impedance along with a single A370PEQ amp per channel. From theory, if I've got it right, this should give me the same total output as my friend's dual woofer system with the advantages of more driver area (better air-coupling) and less driver motion, plus a vertically distributed source to minimise floor/ceiling interactions. Please tell me if I'm off the track in some way.
Main speakers are rather large (2.2m high) E R Audio electrostatics. Room is 4.5m x 7.5m. Listening is usually no more than 96dB at 3.5m from the speakers.
Assuming the idea is sound, can anyone tell me when SW-12-16FR drivers will be available? They are showing as out of stock on the website as present.